# AB Math Expert vs Lecthème +

The clearest difference is price: Lecthème + at Free against AB Math Expert's $0.99. AB Math Expert's advantage is device support and iOS requirement (8.0 vs 11.0). On in-app purchases there is nothing between them.

Lecthème + is free to download; AB Math Expert costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | AB Math Expert | Lecthème + |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.1 (13 ratings)](https://appshunter.io/ios/app/ab-math-expert/id423244428/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 96.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Paid | — |
| Size | 17 MB | 137 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Nicolas Lehovetzki](https://appshunter.io/developer/412827944) | [Éditions JOCATOP](https://appshunter.io/developer/1438112476) |

## What reviewers say

### AB Math Expert

[App page](https://appshunter.io/ios/app/ab-math-expert/id423244428)

Engage in a fast-paced mental calculation game that tests your speed and concentration. Click on bubbles in ascending order to solve math problems under time pressure. Compete globally and challenge yourself with five difficulty levels.

**Highlights:** Mental calculation game, Bubble clicking in ascending order, Speed and concentration challenge, Global ranking via Game Center, 5 difficulty levels, Universal app for iPad and iPhone

**Features:** Vision Pro support

**In-app purchases:** none


### Lecthème +

[App page](https://appshunter.io/ios/app/lectheme-plus-combinatoire/id6463117943)

**In-app purchases:** none


## Frequently asked questions

### Is AB Math Expert free?

AB Math Expert costs $0.99, with no in-app purchases.

### Is Lecthème + free?

Lecthème + is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*